<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>大转盘抽奖</title>

    <style type="text/css">
        body,ul,ol,li,p,h1,h2,h3,h4,h5,h6,form,fieldset,table,td,img,div{margin:0;padding:0;border:0;}
        body{color:#333; font-size:12px;font-family:"Microsoft YaHei"}
        ul,ol{list-style-type:none;}
        select,input,img,select{vertical-align:middle;}
        input{ font-size:12px;}
        a{ text-decoration:none; color:#000;}
        a:hover{color:#c00; text-decoration:none;}
        .clear{clear:both;}

        /* 大转盘样式 */
        .banner{display:block;width:95%;margin-left:auto;margin-right:auto;margin-bottom: 20px;}
        .banner .turnplate{display:block;width:100%;position:relative;}
        .banner .turnplate canvas.item{width:100%;}
        .banner .turnplate img.pointer{position:absolute;width:28%;left:36%;top:29%;}
        .more{display: block;width: 100%;position: fixed;top: 0;left: 0;height: 150px;}
        .cloud{position: fixed;left: 0;top: 70%;width: 150px;}
        .cloud2{position: fixed;right: 0;top: 32%;width: 50px;}
        .cloud3{position: fixed;left: 0;top: 30%;width: 100px;}
        @media screen and (max-width: 320px) {
            .cloud{position: fixed;left: 0;top: 70%;width: 150px;}
            .cloud2{position: fixed;right: 0;top: 30%;width: 50px;}
            .cloud3{position: fixed;left: 0;top: 23%;width: 100px;}
        }
        @media screen and (min-width: 321px) and (max-width: 375px) {
            .cloud{position: fixed;left: 0;top: 72%;width: 150px;}
            .cloud2{position: fixed;right: 0;top: 32%;width: 50px;}
            .cloud3{position: fixed;left: 0;top: 25%;width: 100px;}
        }
        @media screen and (min-width: 376px) {
            .cloud{position: fixed;left: 0;top: 68%;width: 150px;}
            .cloud2{position: fixed;right: 0;top: 32%;width: 50px;}
            .cloud3{position: fixed;left: 0;top: 25%;width: 100px;}
        }
        @media screen and (max-height: 480px) {
            .cloud{position: fixed;left: 0;top: 81%;width: 150px;}
            .cloud2{position: fixed;right: 0;top: 35%;width: 50px;}
            .cloud3{position: fixed;left: 0;top: 27%;width: 100px;}
        }

        #mark{width: 100%;height: 100%;background: rgba(0,0,0,0.5);position: fixed;top: 0;left: 0;display: none;}
        .red-img{position: fixed;top: 10%;left: 5%;width: 90%;}
    </style>

    <script type="text/javascript" src="/static/web/dial/js/jquery-1.10.2.js"></script>
    <script type="text/javascript" src="/static/web/dial/js/awardRotate.js"></script>
    <script type="text/javascript" src="/static/web/layer/layer.js"></script>
    <script type="text/javascript">
        var turnplate={
            restaraunts:[],				//大转盘奖品名称
            colors:[],					//大转盘奖品区块对应背景颜色
            outsideRadius:184,			//大转盘外圆的半径
            textRadius:155,				//大转盘奖品位置距离圆心的距离
            insideRadius:50,			//大转盘内圆的半径
            startAngle:0,				//开始角度

            bRotate:false				//false:停止;ture:旋转
        };

        $(document).ready(function(){
            //动态添加大转盘的奖品与奖品区域背景颜色

//            turnplate.restaraunts = ["优惠券10元", "谢谢参与", "优惠券20元", "优惠券50元", "金币120", "金币300"];
//            turnplate.colors = ["#FFFFFF","#5fcbd5", "#FFFFFF", "#5fcbd5", "#FFFFFF","#5fcbd5"];
            turnplate.restaraunts = eval({$restaraunts});
            turnplate.colors = eval({$color});
            var rotateTimeOut = function (){
                $('#wheelcanvas').rotate({
                    angle:0,
                    animateTo:2160,
                    duration:8000,
                    callback:function (){
                        alert('网络超时，请检查您的网络设置！');
                    }
                });
            };

            //旋转转盘 item:奖品位置; txt：提示语;
            var rotateFn = function (item, txt){
                var angles = item * (360 / turnplate.restaraunts.length) - (360 / (turnplate.restaraunts.length*2));
                if(angles<270){
                    angles = 270 - angles;
                }else{
                    angles = 360 - angles + 270;
                }
                $('#wheelcanvas').stopRotate();
                $('#wheelcanvas').rotate({
                    angle:0,
                    animateTo:angles+3600,
                    duration:8000,
                    callback:function (){	//回调
                        layer.msg(txt);

                    }
                });
            };

            $('.pointer').click(function (){
//                if(turnplate.bRotate)return;
                turnplate.bRotate = !turnplate.bRotate;
                //获取随机数(奖品个数范围内)
//                var item = rnd(1,turnplate.restaraunts.length);
                $.ajax({
                    url : '{:url("mobile/draw/rand_ss")}',
                    type: "POST",
                    data:{"num":turnplate.restaraunts.length},
                    dataType:'json',
                    success:function(data){
                        if (data['status'] == 'y') {
                            item  = data['rand'];
                            title = data['title'];
//                            $('#total').html(data['total']);
//                            $('#times').html(data['times']);
//                            console.log(item);
                            rotateFn(item, title);
                        } else {
                            layer.msg(data['title']);
                        }
                    }
                });
                //奖品数量等于10,指针落在对应奖品区域的中心角度[252, 216, 180, 144, 108, 72, 36, 360, 324, 288]
//                rotateFn(item, title);
                /* switch (item) {
                 case 1:
                 rotateFn(252, turnplate.restaraunts[0]);
                 break;
                 case 2:
                 rotateFn(216, turnplate.restaraunts[1]);
                 break;
                 case 3:
                 rotateFn(180, turnplate.restaraunts[2]);
                 break;
                 case 4:
                 rotateFn(144, turnplate.restaraunts[3]);
                 break;
                 case 5:
                 rotateFn(108, turnplate.restaraunts[4]);
                 break;
                 case 6:
                 rotateFn(72, turnplate.restaraunts[5]);
                 break;
                 case 7:
                 rotateFn(36, turnplate.restaraunts[6]);
                 break;
                 case 8:
                 rotateFn(360, turnplate.restaraunts[7]);
                 break;
                 case 9:
                 rotateFn(324, turnplate.restaraunts[8]);
                 break;
                 case 10:
                 rotateFn(288, turnplate.restaraunts[9]);
                 break;
                 } */
            });
        });

        function rnd(n, m){
            var random = Math.floor(Math.random()*(m-n+1)+n);
            return random;

        }


        //页面所有元素加载完毕后执行drawRouletteWheel()方法对转盘进行渲染
        window.onload=function(){
            drawRouletteWheel();
        };

        function drawRouletteWheel() {
            var canvas = document.getElementById("wheelcanvas");
            if (canvas.getContext) {
                //根据奖品个数计算圆周角度
                var arc = Math.PI / (turnplate.restaraunts.length/2);
                var ctx = canvas.getContext("2d");
                //在给定矩形内清空一个矩形
                ctx.clearRect(0,0,422,422);
                //strokeStyle 属性设置或返回用于笔触的颜色、渐变或模式
                ctx.strokeStyle = "#FFFFFF";
                //font 属性设置或返回画布上文本内容的当前字体属性
                ctx.font = 'bold 18px Microsoft YaHei';
                for(var i = 0; i < turnplate.restaraunts.length; i++) {
                    var angle = turnplate.startAngle + i * arc;
                    ctx.fillStyle = turnplate.colors[i];
                    ctx.beginPath();
                    //arc(x,y,r,起始角,结束角,绘制方向) 方法创建弧/曲线（用于创建圆或部分圆）
                    ctx.arc(211, 211, turnplate.outsideRadius, angle, angle + arc, false);
                    ctx.arc(211, 211, turnplate.insideRadius, angle + arc, angle, true);
                    ctx.stroke();
                    ctx.fill();
                    //锁画布(为了保存之前的画布状态)
                    ctx.save();

                    //改变画布文字颜色
                    var b = i+2;
                    if(b%2){
                        ctx.fillStyle = "#E5302F";
                    }else{
                        ctx.fillStyle = "#E5302F";
                    };

                    //----绘制奖品开始----


                    var text = turnplate.restaraunts[i];
                    var line_height = 17;
                    //translate方法重新映射画布上的 (0,0) 位置
                    ctx.translate(211 + Math.cos(angle + arc / 2) * turnplate.textRadius, 211 + Math.sin(angle + arc / 2) * turnplate.textRadius);

                    //rotate方法旋转当前的绘图
                    ctx.rotate(angle + arc / 2 + Math.PI / 2);

                    /** 下面代码根据奖品类型、奖品名称长度渲染不同效果，如字体、颜色、图片效果。(具体根据实际情况改变) **/
                    if(text.indexOf("盘") > 0 ) {
                        //判断字符进行换行
                        var texts = text.split("盘");
                        for (var j = 0; j < texts.length; j++) {
                            ctx.font = j == 0 ? 'bold 20px Microsoft YaHei' : 'bold 18px Microsoft YaHei';
                            if (j == 0) {
                                ctx.fillText(texts[j] + "盘", -ctx.measureText(texts[j] + "盘").width / 2, j * line_height);
                            } else {
                                ctx.fillText(texts[j], -ctx.measureText(texts[j]).width / 2, j * line_height * 1.2); //调整行间距
                            }
                        }
                    }else if (text.indexOf("盘") == -1 && text.length>5 && text.length<8){
                        // 123456789
                        //奖品名称长度超过一定范围
                        text = text.substring(0,5)+"||"+text.substring(5);
                        var texts = text.split("||");
                        for(var j = 0; j<texts.length; j++){
                            ctx.fillText(texts[j], -ctx.measureText(texts[j]).width / 2, j * line_height);
                        }
                    }else if (text.indexOf("盘") == -1 && text.length>7){
                        // 123456789
                        //奖品名称长度超过一定范围
                        text = text.substring(0,6)+"||"+text.substring(6,10)+"||"+text.substring(10);
                        var texts = text.split("||");
                        for(var j = 0; j<texts.length; j++){
                            ctx.fillText(texts[j], -ctx.measureText(texts[j]).width / 2, j * line_height);
                        }
                    }else{

                        //在画布上绘制填色的文本。文本的默认颜色是黑色

                        //measureText()方法返回包含一个对象，该对象包含以像素计的指定字体宽度
//                        ctx.fillText(text, -ctx.measureText(text).width / 2, 0);
                        ctx.fillText(text, -ctx.measureText(text).width / 2, 70);
                    }

                    //添加对应图标
                    var img= document.getElementById("diy-img-" + i);
                    img.onload=function(){
                        ctx.drawImage(img,-35,-30);
                    };
                    ctx.drawImage(img,-35,-30);

                    //把当前画布返回（调整）到上一个save()状态之前
                    ctx.restore();
                    //----绘制奖品结束----
                }
            }
        };



    </script>
</head>
<body bgcolor="#fff" style="text-align: center;position: relative;max-width: 720px;padding-top: 20%;">
<img src="/static/web/dial/images/bg.png" style="display: block;width: 100%;position: absolute;top:0;left:0;">
<!--<img src="/static/web/dial/images/icon1.png" style="display: block;width: 13%;position: absolute;top:5%;left:5%;">-->
<a href="{:url('mobile/draw/log')}"><img src="/static/web/dial/images/icon2.png" style="display: block;width: 13.5%;position: absolute;top:4%;right:5%;"></a>
{volist name="cover" id="image"}
<img src="/{$image}" id="diy-img-{$i - 1}" style="display:none;width: 72px;height: 72px;" />
{/volist}

<div class="banner" style="width: 90%;margin: 0 auto 0;">
    <div class="turnplate" style="background-image:url(/static/web/dial/images/bg1.png);background-size:100% 100%;">
        <canvas class="item" id="wheelcanvas" width="422px" height="422px"></canvas>
        <img class="pointer" src="/static/web/dial/images/jt2.png"/>
    </div>
</div>

<div style="text-align:center;margin:50px 0; color:white;font:normal 18px/30px '宋体';position: relative;z-index: 2;">
    <p style="">已有<span style="color: #FFCA29;margin: 0 10px;" id="total">{$total}</span>人参与</p>
    <p>抽奖一次消耗1积分<span style="color: #FFCA29;margin: 0 10px;" id="times"></span></p>
</div>
</body>
</html>